NVIDIA GeForce GTX 860M vs NVIDIA GeForce 820M

VS

NVIDIA GeForce GTX 860M

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 860M and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 860M 's Advantages

Boost Clock1085MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (80.19GB/s vs 28.83GB/s)

256 additional rendering cores

NVIDIA GeForce 820M 's Advantages

Released 1 years and 2 months late

Lower TDP (45W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 860M +123%

1.389 TFLOPS

GeForce 820M

0.622 TFLOPS

GeForce GTX 860M

VS

GeForce 820M

Graphics Card

Jan 2014

Release Date

Mar 2015

GeForce 800M

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

1020 MHz

Base Clock

-

1085 MHz

Boost Clock

-

1253 MHz

Memory Clock

901 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

80.19GB/s

Bandwidth

28.83GB/s

Render Config

-

640

Shading Units

384

40

TMUs

32

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

17.36 GPixel/s

Pixel Rate

6.480 GPixel/s

43.40 GTexel/s

Texture Rate

25.92 GTexel/s

-

1389 GFLOPS

FP32 (float)

622.1 GFLOPS

43.40 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

75W

TDP

45W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM107

GPU Name

GK107

N15P-GX-A1

GPU Variant

-

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.27 billion

148 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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